I had got one in the other day and I did this method for it. I got some help with this because I thought I was doing something wrong with the files I was flashing to the JTAG. I had read about needing falcon files for it. I had another member on here assisting me. I was running out of hope for this thing. When I flashed the falcon files I kept getting E79 or black screens. I redid my wiring, with no help.

Frustrated beyond all, I looked around on google and found another wiring diagram for JTAGs. I located the alternate DB1F1 point on top of the motherboard by where the HDD plugs into on the motherboard. I removed my wire from the bottom DB1F1 point and soldered it to the top one. I had just flashed xellous for falcon with patched SMC and KV and had previously got E79. So after changing my wiring to the top DB1F1 point I turned on the 360 with eject and a few seconds later, success! Xellous booted and I finally got the CPU key.

I also was told that you need falcon donor files to make a freeboot, but found an easier way. I got the latest best pig freeboot toolbox, I deselected automatically detect motherboard and chose falcon, then chose make custom image so I can put in my patched SMC, then once that was done flashed freeboot and working without issues.

Just want to make sure, in addition to this, I still need to add in the LPT cable in addition to this correct? I have the first edition XBox non hdmi Xenon... I've done about 3 hours of searching and no luck in finding this answer.

So I was using the reverse JTAG on my Jasper and I started experiencing ROL issues, controllers not syncing, and failure to boot issues. I missed an important part of this tutorial and did the rewire BEFORE reflashing. Now in order to flash do I need to undo everything and go back to how it was with the diodes or can I use the transistors as-is and just change the wires back to DB1F1 and the ROL point, flash, then rewire?

I got a reply back from BoXXDr that said "Yes, just use the transistors and you only need to move aud_clamp to ROL point." That being said I am instead just going to use nandpro to write the updflash.bin with the correct SMC and then I shouldn't have to redo any of the wiring. Thanks for your help BoXXDr!!

Totaal newbie to posting!I am not new to jtagging but eventually everybody runs into that one that beats them.Well i found one..it is a xenon with an explotiable kernal 1902.I have done multiple dumps with no bad blocks or non matching.I am using an lpt homemade cable.I have done at least 15 jtags with it...not alot but enough to know its not the cable..I keep getting an e79 error no matter what i flash to it,whether it is xbr or freeboot!!???I can then turn around and reflash with an original dump and boots fine.I have tried several different jtag wiring setups to always get the e79...except this one!!?Has anybody that has done this on a xenon were you experiencing e79 issues b4 you did? Thanks and great tut...i am waiting on parts to try this on a falcon i just got fresh off ebay!!!